4.15-stable review patch. If anyone has any objections, please let me know.
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From: Benjamin Herrenschmidt benh@kernel.crashing.org
commit 11fb37998759c48e4e4c200c974593cbeab25d3e upstream.
The current code tries to test for bits that are masked out by usb_endpoint_maxp(). Instead, use the proper accessor to access the new high bandwidth bits.
Signed-off-by: Benjamin Herrenschmidt benh@kernel.crashing.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/gadget/udc/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -912,7 +912,7 @@ int usb_gadget_ep_match_desc(struct usb_ return 0;
/* "high bandwidth" works only at high speed */ - if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11)) + if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp_mult(desc) > 1) return 0;
switch (type) {